Play Yume Penguin Monogatari (japan) Online

Yume Penguin Monogatari came out in 1991 for the Nintendo Entertainment System, developed and published by Konami. It was a Japan only release for the Famicom, so it never saw an official western launch. This was during a time when Konami was experimenting with a wide variety of genres on the platform, and this game definitely stands out from their more famous action titles.

You control a young penguin named Penta who is trying to rescue his girlfriend, Penko, from a dream world. The game is a side scrolling platformer where you walk and jump through levels, but your main method of attack is sliding on your belly. You build up speed by sliding down slopes, and this momentum is used to crash into enemies or break through certain blocks. The levels are filled with collectible fish that restore your health and special items that grant you temporary powers, like a propeller hat for flight. The pacing is quite fast, especially when you chain slides together, and the difficulty can be unforgiving with precise jumps and aggressive enemies. It feels surprisingly fluid and energetic once you get the hang of the unique sliding mechanic.